fix examples

vlib/gg/gg.v

@@ -60,7 +60,7 @@ struct Face {
 struct Cfg {
 	width     int
 	height    int
-	use_ortho int
+	use_ortho bool 
 	retina    bool
 	font_size int
 }
@@ -90,7 +90,7 @@ pub fn new_context(cfg Cfg) *GG {
 	// # glScissor(0,0,300,300);
 	shader := gl.new_shader('simple')
 	shader.use()
-	if cfg.use_ortho > 0 {
+	if cfg.use_ortho { 
 		projection := glm.ortho(0, cfg.width, cfg.height, 0)
 		/* 
 		// for debugging broken tetris in gg.o

vlib/http/download_mac.v

@@ -24,7 +24,7 @@ fn download_cb(ptr voidptr, size, nmemb size_t, userp voidptr) int {
 	return written 
 }
 
-fn download_file_with_progress(url, out string, cb, cb_finished download_finished_fn) {  
+fn download_file_with_progress(url, out string, cb, cb_finished downloadfn) {   
 	curl := C.curl_easy_init()
 	if isnil(curl) {
 		return